SEER, short of Seasonal Energy Efficiency Ratio, refers to a rating system used to dictate an air conditioner machine’s efficiency. The “ratio” describes the cooling output of your air conditioner machine throughout a common cooling season divided by the AC’s energy usage. The major differences between a 16 SEER & a 14 SEER A/C machine are the upfront costs, comfort levels, & bi-weekly energy savings. Commonly, an air conditioner machine with a 16 SEER rating provides much better humidification, more uniform cooling through your residence, & can more precisely achieve the set temperature than an A/C machine with a 14 SEER rating. This is because higher SEER units come with either a multiple-stage or variable-speed technology. This technology enables your air conditioner machine to precisely adjust its cooling output to match your cooling requirements at any certain time. They’re designed to function at lower speeds for longer, enabling them to supply much better comfort levels to your residence! Running longer may seem like it is wasting energy, however it’s consuming less energy by running at much lower speeds. Besides, longer cycles allow your A/C machine to eliminate additional moisture from your air & supply uniform temperatures all through your residence. On the other hand, many 14-SEER air conditioner machines utilize single-stage technology, which essentially means your A/C machine can only cool under a single speed; full blast! Single-stage systems are genuinely incapable of providing similar comfort levels as 16 SEER ACs as they cool your residence in short bursts, resulting in uneven temperatures & less dehumidification! If you can, be sure to go for a 16 SEER AC machine.